When the pressure that a gas exerts on a sealed container changes from 22.5 psi to psi the temperature changes from 110 c to 65.0 c
Solution 1
therefore P/T = k
where P - pressure , T - temperature and k - constant
parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation
T1 - temperature in kelvin - 110 °C + 273 = 383 K
T2 - 65.0 °C + 273 = 338 K
substituting these values in the equation
P = 19.9 psi
new pressure is 19.9 psi
Solution 2
Answer:
19.9 psi
Explanation:
📚 Related Questions
Answer:
Non-destructive physical changes
Explanation:
Hi, this is not a rule but most of the non-destructive physical changes are reversible.
In that group of changes you may find:
- State changes (solidification, evaporation, etc.)
- Adsortion and desortion
- Temperature changes
- Mixtures
Think of a physical change and then try to figure out which process can reverse that.
Water evaporates and then vapors condenses into liquid water again.
Answer:
It must be vaporized is the answer
Explanation:
took thest
write the reacting equation
that is 2 Na + Cl2 =2 NaCl
by use of mole ratio between Na :NaCl which is 2 :2 t he moles of NaCl is also = 5.50 moles
mass of NaCl= moles x molar mass
=5.50 moles x58.5 g/mol = 321.75 grams
There are 2 classifications of waves according to the media of propagation.
Mechanical Waves – needs a medium, an example is sound waves. Sound waves do not travel through a vacuum. Sound waves move by replacing one particle with another. Particles vibrate and that is why we hear the sounds. Electromagnetic Waves and electrostatic waves are one but the same. They do not require a medium. – an example is light waves.i think it is B) because Sound waves move by replacing one particle with another. Sound waves require a medium to propagate, or move. Light and electromagnetic waves do not require a medium. Electrostatic are not a type of wave.
hope this helps
Answer :
The key differences between a liquid and the a gas is,
- Shape and volume :
A liquid has no fixed shape but it has a volume.
A gas has neither a fixed shape nor a volume.
- Inter-molecular space :
A liquid has more inter-molecular space between the molecules.
A gas has larger inter-molecular space between the molecules as compared to the liquids.
- Inter-molecular attraction :
A liquid has some Inter-molecular attraction between the molecules because of the low Inter-molecular spacing between the molecules.
A gas has very low or minimum Inter-molecular attraction between the molecules because of the larger Inter-molecular spacing between the molecules.
- Fluidity :
A liquid flow from the higher to the lower region but a gas flow in all the direction.
Liquids and gases differ from each other in the following ways:
1. Intermolecular forces
2. Motion of particles
3. Direction of flow
4. Compressibility
Further Explanation:
Matter can mainly exist in three physical states. These are solid, liquid and gas.
Solid
It is that state of matter that has a definite shape and volume. These have a regular arrangement of its constituent particles. These have the strongest intermolecular forces between their constituent particles and therefore the motion of particles in solid is almost negligible. Table salt, wood, and diamond are some examples of solids.
Liquid
The state of matter with a definite volume but no particular shape is called liquid. The intermolecular forces in the liquids are weaker than that in solids and therefore the motion of particles in liquids is more as compared to that in solids. Milk, water, and bromine are some examples of liquids.
Gas
This state of matter has neither a definite shape nor a definite volume. These have a disordered arrangement of its constituent particles. These have the weakest intermolecular forces between their constituent particles and therefore the motion of particles in a gas is the highest among all states of matter. Nitrogen, hydrogen and carbon dioxide are some examples of gases.
Liquids have a definite volume but gases occupy the volume of the container in which these are kept.
Liquids have stronger intermolecular forces as compared to that of gases so the motion of gas particles is more than that of liquid particles.
Liquids are incompressible whereas gases are highly compressible in nature.
The flow of liquid takes place from higher to lower level while gases can move randomly in all directions.
Learn more:
1. Which sample is a pure substance? brainly.com/question/2227438
2. Which is a characteristic of a mixture? brainly.com/question/1917079
Answer details:
Grade: High School
Subject: Chemistry
Chapter: Matter in our surroundings
Keywords: liquid, gas, solid, states of matter, intermolecular forces, shape, volume, matter, strong, weakest, motion of particles.
find the moles of nitrogen
1 moles = 6.022 x10 ^23 particles
what about 1.81 x10^23 =? moles
= (1.81 x10^ 24)/(6.022 x10^23) = 3 moles
mass = moles x molar mass of nitrogen gas = 14 x2 = 28 g/mol
= 3 moles x28 g/mol = 84 grams
Answer:
56 g
Explanation:
c(p)=0.450 J/g•°C
m= 55.8 g
Δt = t(final)-t(initial)=49.0⁰-25.0⁰ = 24.0⁰C
Q=c(p)*m*Δt = 0.450 J/g•°C * 55.8 g*24.0⁰C ≈ 603 J
Q≈ 603 J
Where GPE is gravitational potential energy (J), m is the mass ob the object (kg), g is acceleration due to gravity (m/s²) and h is the height (m)
m = 4 kg
g = 9.8 m/s²
h = 3 m
By substitution,
GPE = 4 kg x 9.8 m/s² x 3 m
= 117.6 J
≈ 118 J
Hence, the answer is D